9989835 has 16 divisors (see below), whose sum is σ = 16045344. Its totient is φ = 5307392.

The previous prime is 9989827. The next prime is 9989849. The reversal of 9989835 is 5389899.

9989835 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 9989835 - 2³ = 9989827 is a prime.

9989835 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3259 + ... + 5531.

It is an arithmetic number, because the mean of its divisors is an integer number (1002834).

Almost surely, 2^9989835 is an apocalyptic number.

9989835 is a deficient number, since it is larger than the sum of its proper divisors (6055509).

9989835 is a wasteful number, since it uses less digits than its factorization.

9989835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574.

The product of its digits is 699840, while the sum is 51.

The square root of 9989835 is about 3160.6700239032. The cubic root of 9989835 is about 215.3704448258.

The spelling of 9989835 in words is "nine million, nine hundred eighty-nine thousand, eight hundred thirty-five".